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Method for manufacturing self-lubricating zinc-plastic composite micro bearing

A technology of miniature bearings and composite materials, applied in bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of frequent use of computers, burnt microprocessors, and occupancy of butter cups, achieve good thermo-mechanical performance, and improve comprehensive performance. , the effect of high sliding speed

Inactive Publication Date: 2010-06-16
陈政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two shortcomings of this traditional product: one is that the butter cup takes up a lot of space, which hinders the development of smaller processors; the other is that the computer is frequently used and the environment is changeable. When you run out of time, you can burn the microprocessor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] specific implementation plan

[0006] The present invention adopts 9-15% tin, 4-6% copper, 2-5% lead, 2-5% antimony, 0.5-0.8% iron, 0.5-0.8% nickel, 67-82% zinc % mixed evenly to make zinc-based bearing alloy powder; then take 80-95% by weight polytetrafluoroethylene and 5-20% polyphenylene material to make solid lubricant; then take 20-50% by weight The solid lubricant is mixed with 50-80% zinc-based bearing alloy powder to make molding powder; the molding powder is pressed and molded, and the molded parts are put into a nitrogen-based protective atmosphere sintering furnace for sintering, and the sintering temperature It is sintered at a temperature of 360°C to 410°C and a sintering time of 30 to 60 minutes. The composition of the protective atmosphere is 95% nitrogen, 5% hydrogen, the sintering temperature of the molding is 370°C-400°C, and the sintering time is 40-50 minutes. The molded parts are various miniature bearings.

[0007] Use the miniature bearing used...

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Abstract

The invention relates to a method for manufacturing a self-lubricating zinc-plastic composite micro bearing, which comprises the following steps: firstly, uniformly mixing 9 to 15 percent of tin, 4 to 6 percent of copper, 2 to 5 percent of lead, 2 to 5 percent of antimony, 0.5 to 0.8 percent of iron, 0.5 to 0.8 percent of nickel and 67 to 82 percent of zinc in percentage by weight to form zinc-based bearing alloy powder; then, mixing 80 to 95 percent of polytetrafluoroethylene and 5 to 20 percent of polyphenyl support material by weight to form solid lubricant; mixing 20 to 50 percent of solid lubricant and 50 to 80 percent of zinc-based bearing alloy powder by weight to form molding powder; and pressing the molding powder, putting a molded piece into a protective gas sintering furnace which uses nitrogen as matrix, and sintering the molded piece at the sintering temperature of between 360 and 410 DEG C for 30 to 60 minutes to form the micro bearing. The method of the invention is simple, economic and practical; and the micro bearing manufactured by the method has the advantages of long service life, good using effect, low cost and small floor area, and is suitable for popularization and use.

Description

technical field [0001] The invention relates to a method for manufacturing a miniature bearing of self-lubricating zinc-plastic composite material, which belongs to the technical field of manufacturing mechanical parts by compounding metal powder and non-metallic plastic powder and adopting a powder metallurgy process. Background technique [0002] At present, personal computers have exceeded 1 billion units, and it is expected to reach 2 billion units in 2008. The microprocessor in the computer is becoming one of the fastest growing industries in the world. The speed of the microprocessor has jumped to three gigabytes. The clock pulse of the processor is getting faster and faster, and the heat generated is getting higher and higher. The heat dissipation work is not good, the computer is unstable at the slightest, and the microprocessor is burnt at the worst. The cooling fins and the Fan, the speed of the fan on the processor is generally between 2400rpm and 6800rpm. In addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/12F16C33/14B22F3/16B22F5/00
Inventor 陈政
Owner 陈政
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